Best Thermal Paste

When it comes to optimizing the performance of your electronics, choosing the best thermal paste is crucial. Thermal paste, also known as thermal grease or CPU grease, plays a vital role in conducting... heat away from your computer's central processing unit (CPU) or other electronic components. The right thermal paste can help improve heat dissipation and ensure efficient cooling, which is essential for maintaining the longevity and performance of your devices. On this page, you'll find a carefully curated selection of top-rated thermal pastes based on user reviews, making it easier for you to find the perfect solution for your specific needs.
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What to look for in thermal paste

1. Thermal Conductivity

Look for a thermal paste with high thermal conductivity, measured in W/mK (watts per meter-kelvin). Higher values mean better heat transfer from your CPU or GPU to the cooler.

2. Type of Paste

Thermal pastes come in different types, such as metal-based, ceramic-based, and silicone-based. Metal-based pastes offer excellent performance but can be electrically conductive, while ceramic and silicone options are safer for beginners.

3. Ease of Application

Some pastes are easier to apply than others. Consider options that come with applicators or spreaders, especially if you’re new to building or upgrading PCs.

4. Longevity and Durability

Check how long the paste will last before it needs to be reapplied. Some formulas offer longer durability, making them ideal for systems that run continuously or under heavy loads.
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  1. 1
    Thermaltake Thermal Grease (TG-7)

    About this product

    A high-performance thermal grease with diamond powder for improved heat transfer and long-lasting conductivity.

    A high-performance thermal grease with diamond powder for improved heat transfer and long-lasting conductivity.

    5.0 (4 reviews)
    $9.99 Your price for this item is $9.99
  2. 2
    Corsair XTM50 High Performance Thermal Paste Great product for a great price! Definitely love Best Buy

    About this product

    A high-performance silver thermal paste that ensures efficient heat transfer for CPUs and GPUs.

    A high-performance silver thermal paste that ensures efficient heat transfer for CPUs and GPUs.

    What customers like

    • Easy to apply
    • Exceptional cooling performance
    • Great value for the price
    • Durable and long-lasting
    • Includes helpful application tools
    4.7 (2,434 reviews)
    $19.99 Your price for this item is $19.99
  3. 3
    STARTECH 1.5G Metal Oxide Thermal Cpu Paste Compound Tube

    About this product

    A metal oxide thermal paste offering superior heat conductivity and safe, electrically non-conductive performance.

    A metal oxide thermal paste offering superior heat conductivity and safe, electrically non-conductive performance.

    4.5 (2 reviews)
    $15.99 Your price for this item is $15.99
  4. 4
    STARTECH Provide Optimal Heat Transfer Between Cpu And Heatsink Through A Metal Oxide Compound Thermal Compound Thermal

    About this product

    A high-quality metal oxide thermal compound that enhances heat transfer between your CPU and heatsink.

    A high-quality metal oxide thermal compound that enhances heat transfer between your CPU and heatsink.

    4.5 (2 reviews)
    $19.68
    SAVE $1
    Your price for this item is $19.68
  5. 5
    ARCTIC Mx-4 2019 Edition - Thermal Compound Paste - Carbon Based High Performance High Durability Heatsink Paste - 4 Grams

    About this product

    A carbon-based thermal compound paste offering high performance, exceptional heat dissipation, and long-lasting durability.

    A carbon-based thermal compound paste offering high performance, exceptional heat dissipation, and long-lasting durability.

    $18.99 Your price for this item is $18.99
  6. 6
    CORSAIR Xtm50 Performance Thermal Paste (5-Grams)

    About this product

    A high-performance thermal paste designed to improve heat transfer for optimal PC cooling.

    A high-performance thermal paste designed to improve heat transfer for optimal PC cooling.

    $35.00 Your price for this item is $35
  7. 7
    CABLESHARK Fan Thermal Paste, 5G In Silver

    About this product

    A silver thermal paste designed to enhance heat transfer for optimal PC component cooling.

    A silver thermal paste designed to enhance heat transfer for optimal PC component cooling.

    $12.99 Your price for this item is $12.99
  8. 8
    3 5g High-Density Polysynthetic Thermal Cooling Compound W Bonus Tool in Silver

    About this product

    A high-density silver thermal compound with 99.9% pure silver particles and a bonus application tool.

    A high-density silver thermal compound with 99.9% pure silver particles and a bonus application tool.

    $30.00 Your price for this item is $30
  9. 9
    ARCTIC Aa-1.75G Premium Ceramic Thermal Compound - 1.75G Tube for Optimal Heat Transfer In Silver

    About this product

    A silver alumina thermal compound designed to efficiently transfer heat in computer components.

    A silver alumina thermal compound designed to efficiently transfer heat in computer components.

    $30.99 Your price for this item is $30.99
  10. 10
    COOLER MASTER Masterliquid 240L Core Ii Argb Cpu Aio Liquid Cooler (White) (Mlw-D24M-A18Pa-Rw)

    About this product

    A white liquid CPU cooler featuring dual chamber pump, ARGB lighting, and included Cryo-Fuze thermal paste.

    A white liquid CPU cooler featuring dual chamber pump, ARGB lighting, and included Cryo-Fuze thermal paste.

    $111.99
    SAVE $71
    Your price for this item is $111.99

FAQ

What is thermal paste and why is it important for computers? + -

Thermal paste, also known as thermal compound or thermal grease, is a substance applied between a computer's processor and its heat sink. It helps fill microscopic gaps and improves heat transfer, ensuring the processor stays cool and operates efficiently.

How often should I replace the thermal paste on my CPU or GPU? + -

It's generally recommended to replace thermal paste every two to three years, or whenever you remove the heat sink from your CPU or GPU. Over time, thermal paste can dry out and lose effectiveness, impacting cooling performance.

Are there different types of thermal paste available? + -

Yes, there are several types of thermal pastes including ceramic-based, metal-based, and silicone-based compounds. Each type offers different levels of thermal conductivity and application ease, so you can choose one that best fits your needs.

Can I use any thermal paste for both CPUs and GPUs? + -

Most general-purpose thermal pastes are suitable for both CPUs and GPUs. However, it's important to check the manufacturer's recommendations to ensure compatibility with your specific components.

What factors should I consider when choosing a thermal paste? + -

When selecting a thermal paste, consider factors such as thermal conductivity rating, ease of application, longevity, electrical conductivity (some are non-conductive), and user reviews. These aspects help ensure optimal cooling performance for your system.

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